2600020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 5539968

約数和(自身を除く): 2939948

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1831, 3662, 7324, 9155, 18310, 36620, 130001, 260002, 520004, 650005, 1300010, 2600020]

約数ペア:

[(1, 2600020), (2, 1300010), (4, 650005), (5, 520004), (10, 260002), (20, 130001), (71, 36620), (142, 18310), (284, 9155), (355, 7324), (710, 3662), (1420, 1831)]